Hilti DX 5 Mode D'emploi Original page 20

Malfunction
The fastener bends.
The fastener is not driven
flush.
Concrete spalling.
Damaged fastener head.
7.3 Problems with fasteners to be driven into steel
Malfunction
Damaged fastener head.
12 English
Printed: 16.03.2017 | Doc-Nr: PUB / 5292586 / 000 / 02
Possible cause
A rebar is located just below the
concrete surface.
Wrong fastener.
Wrong power setting.
Hard aggregates in concrete
A rebar is located just below the
concrete surface.
Hard surface (steel, concrete).
Hard/old concrete.
Hard aggregates in concrete
Driving power is too high.
The wrong piston has been fitted.
The piston is damaged.
Possible cause
Driving power is too high.
The wrong piston has been fitted.
The piston is damaged.
Action to be taken
▶ Use a shorter nail.
▶ Use a nail with a higher
application limit.
▶ Drive the fastener in at a
different position.
▶ Use a fastener of the correct
length for the insulation thick-
ness.
▶ Adjust the power setting on the
tool.
▶ Use a more powerful cartridge.
▶ Use the single-fastener tool
instead of the magazine tool.
▶ Use a shorter nail.
▶ Use a nail with a higher
application limit.
▶ Drive the fastener in at a
different position.
▶ Increase driving power (adjust
power regulating wheel).
▶ Driving threaded studs: Spall
stop: X-SS...
▶ Use a more powerful cartridge.
▶ Use the single-fastener tool
instead of the magazine tool.
▶ Reduce driving power (adjust
the power regulating wheel).
▶ Use a less powerful cartridge.
▶ Use the nails with a "top hat".
▶ Use the nails with a washer.
▶ Check that the right combina-
tion of piston and fastener is
used.
▶ Change the piston.
Action to be taken
▶ Reduce driving power (adjust
the power regulating wheel).
▶ Use a less powerful cartridge.
▶ Use the nails with a "top hat".
▶ Use the nails with a washer.
▶ Check that the right combina-
tion of piston and fastener is
used.
▶ Change the piston.